Seventy years of Hall-Petch, ninety years of superplasticity and a generalized approach to the effect of grain size on flow stress

RB Figueiredo, M Kawasaki, TG Langdon - Progress in Materials Science, 2023 - Elsevier
The grain size, and therefore the grain boundary density, is known to play a major role in the
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …

[HTML][HTML] Magnesium matrix composite reinforced by nanoparticles–a review

KB Nie, XJ Wang, KK Deng, XS Hu, K Wu - Journal of magnesium and …, 2021 - Elsevier
Significant progress has been made in magnesium-based composites during recent
decades, especially for the appearance of magnesium matrix composite reinforced by …

Transition of dominant deformation mode in bulk polycrystalline pure Mg by ultra-grain refinement down to sub-micrometer

R Zheng, JP Du, S Gao, H Somekawa, S Ogata, N Tsuji - Acta Materialia, 2020 - Elsevier
Magnesium (Mg) and its alloys usually show relatively low strength and poor ductility at
room temperature due to their anisotropic hexagonal close-packed (HCP) crystal structure …

Microstructure, deformation, and property of wrought magnesium alloys

JF Nie, KS Shin, ZR Zeng - Metallurgical and Materials Transactions A, 2020 - Springer
Pure magnesium (Mg) develops a strong basal texture after conventional processing of hot
rolling or extrusion. Consequently, it exhibits anisotropic mechanical properties and is …

Six decades of the Hall–Petch effect–a survey of grain-size strengthening studies on pure metals

ZC Cordero, BE Knight… - International Materials …, 2016 - journals.sagepub.com
Refining a metal's grain size can result in dramatic increases in strength, and the magnitude
of this strengthening increment can be estimated using the Hall–Petch equation. Since the …

[HTML][HTML] The mechanisms of grain growth of Mg alloys: a review

Q Chen, R Chen, J Su, Q He, B Tan, C Xu… - Journal of Magnesium …, 2022 - Elsevier
Grain growth directly influences the plasticity and strength of Mg alloys. As the grain size
decreases from the microscale to the nanoscale, the plasticity of Mg alloys continually …

Effect of Sn addition on the deformation behavior and microstructural evolution of Mg-Gd-Y-Zr alloy during hot compression

Q Zhang, Q Li, X Chen, J Bao, Z Chen - Materials Science and Engineering …, 2021 - Elsevier
We have studied the microstructure evolution and deformation behavior of Mg-5Gd-3Y-(1Sn)-
0.5 Zr alloys during hot compression (T= 350° C, 400° C, 450° C and 500° C, ε˙= 0.002 s− 1 …

[HTML][HTML] Deformation mechanisms in ultrafine-grained metals with an emphasis on the Hall–Petch relationship and strain rate sensitivity

RB Figueiredo, TG Langdon - Journal of Materials Research and …, 2021 - Elsevier
Ultrafine-grained materials display almost no strain hardening, an enhanced strain rate
sensitivity and grain boundary offsets during plastic deformation. It is expected that …

Dislocation mechanism based size-dependent crystal plasticity modeling and simulation of gradient nano-grained copper

X Lu, X Zhang, M Shi, F Roters, G Kang… - international Journal of …, 2019 - Elsevier
Overcoming the trade-off between strength and ductility in metallic materials is a grand
challenge. Recently, materials with a gradient nano-grained (GNG) surface layer adhering to …

Effect of grain size on strength and strain rate sensitivity in metals

RB Figueiredo, TG Langdon - Journal of Materials Science, 2022 - Springer
The effect of the grain size on the mechanical properties of metallic materials has been a
topic of significant interest for researchers and industry. For many decades, a relationship …